Re: Ada equivalent for C-pointer?

[Pascal Obry <pascal@obry.net>]

Nick Roberts <nick.roberts@acm.org> writes:

> For example, if there is a C function defined thus:
> 
>    int wibble(int *n);
> 
> then in Ada you can declare:
> 
>    function Wibble (Number: in out Interfaces.C.int);
>    pragma Import(C,Wibble,"wibble");
> 
> and it should work. (Obviously, you must link the C functions in somehow.)

I don't think so. Here Number will be passed by value, no? And you also need
the returned value ;)

So, you probably want:

    function Wibble (Number: access Interfaces.C.int) return Interfaces.C.int;
    pragma Import(C,Wibble,"wibble");

Pascal.

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